<template>
  <el-form ref="deptForm" :rules="rules" :model="form" label-width="120px">
    <el-form-item label="部门名称" prop="name">
      <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
        <el-option v-for="item in employees" :key="item.id" :value="item.username" :label="item.username" />
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click="hCancel">取消</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { getEmployeeSimple } from '@/api/employees'
import { addDepartments } from '@/api/departments'
import { getDepartDetail } from '@/api/departments'
import { updateDepartments } from '@/api/departments'
export default {
  props: {
    pid: {
      required: true,
      type: String
    },
    isEdit: {
      required: true,
      type: Boolean
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    const validCode = (rule, value, callback) => {
      console.log('validCode....', value)
      // value就是当前用户输入的编码，它不能与现有的编码数据（originList）重复
      // 如果重复，就验证不通过
      // if(value能与现有的编码数据（originList）重复) {
      // 1. 从originList（[{id, pid,name, code},{id, pid,name, code}]）中找出全部的编码数据
      let existCodeList = this.originList.map(item => item.code)
      // 如果是编辑状态,把当前编辑的部门编号排除在外
      if (this.isEdit) {
        // 1.根据当前的编号找到对应的部门的code
        const curDep = this.originList.find(item => item.id === this.pid)
        const curCode = curDep.code
        existCodeList = existCodeList.filter(item => item !== curCode)
      }
      if (existCodeList.includes(value)) {
        callback(new Error(value + ':编码被占用了'))
      } else {
        callback()
      }
    }
    const validName = (rule, value, callback) => {
      // 补充校验函数
      let existNameList = this.originList.filter(item => item.pid === this.pid).map(item => item.name)

      // 如果是编辑
      if (this.isEdit) {
        // 被占用的部门名字 = 当前被编辑的部门的同级部门 - 当前被编辑的部门
        // (1) 根据当前的部门的id
        const obj = this.originList.find(item => item.id === this.pid)
        const pid = obj.pid
        existNameList = this.originList.filter(item => item.pid === pid && item.id !== this.pid).map(item => item.name)
      }
      console.log('existNameList', existNameList)

      // 如果existNameList里面有相同value的话
      if (existNameList.includes(value)) {
        callback(new Error('名字' + value + '已经被占用了'))
      } else {
        callback()
      }
    }
    return {
      employees: [],
      form: {
        name: '新部门', // 部门名称
        code: '123456', // 部门编码
        manager: '', // 部门管理者
        introduce: '王贰团结奋斗' // 部门介绍
      },
      rules: {

        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门名称要求1-50个字符', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门编码要求1-50个字符', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          { min: 1, max: 300, message: '部门介绍要求1-300个字符', trigger: 'blur' }
        ]
      }

    }
  },
  created() {
    this.loadEmployee()
    if (this.isEdit) {
      this.loadDetail()
    }
  },
  methods: {
    hCancel() {
      this.$emit('colse')
    },
    async doAdd() {
      const d = { ...this.form, pid: this.pid }
      await addDepartments(d)
      this.$emit('success')
    },
    async doEdit() {
      try {
        await updateDepartments(this.form)
        this.$message({ type: 'success', message: '修改成功' })
        this.$emit('success')
      } catch (err) {
        console.log(err)
        this.$message({ type: 'error', message: err })
      }
    },
    hSubmit() {
      // 表单校验
      this.$refs.deptForm.validate(valid => {
        if (valid) {
          // 具体做添加
          this.isEdit ? this.doEdit() : this.doAdd()
        }
      })
    },
    async loadEmployee() {
      const res = await getEmployeeSimple()
      console.log('员工信息', res)
      this.employees = res.data
    },
    async loadDetail() {
      if (this.isEdit) {
        // alert('现在是编辑，要去获取详情')
        const res = await getDepartDetail(this.pid)
        console.log('现在是编辑，要去获取详情', res)
        this.form = res.data
      }
    }
  }
}
</script>

<style>

</style>
